Cup to US gallon Converter (and vice versa)

Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026

This converter allows you to convert cups [Imp.cup] to US gallons [US.liq.gal.] or US gallons [US.liq.gal.] to cups [Imp.cup]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.

1 cup [Imp.cup] ≈ 0.0751 US gallons [US.liq.gal.]1 US gallon [US.liq.gal.] ≈ 13.3228 cups [Imp.cup]

Convert cups to US gallons

There are two simple ways to convert cups [Imp.cup] to US gallons [US.liq.gal.]. In the first calculation method, the value in cups [Imp.cup] is divided by the rounded conversion factor of 13.3228. The second method multiplies the value in cups [Imp.cup] by the rounded conversion factor of 0.0751.

  • US gallons [US.liq.gal.] ≈ cups [Imp.cup] ÷ 13.3228
  • US gallons [US.liq.gal.] ≈ cups [Imp.cup] * 0.0751

However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of cups [Imp.cup] to US gallons [US.liq.gal.] can be achieved using the following calculation method.

  • US gallons [US.liq.gal.] = cups [Imp.cup] ÷ 58,674 ÷ 1,032.256 * 4,546,090

Convert US gallons to cups

Converting US gallons [US.liq.gal.] to cups [Imp.cup] is easy and can be done in two ways. The first method involves multiplication, in which the value in US gallons [US.liq.gal.] is multiplied by the rounded conversion factor of 13.3228. The second variant is a division. Here, the value in US gallons [US.liq.gal.] is divided by the rounded conversion factor of 0.0751.

  • Cups [Imp.cup] ≈ US gallons [US.liq.gal.] * 13.3228
  • Cups [Imp.cup] ≈ US gallons [US.liq.gal.] ÷ 0.0751

However, rounded conversion values do not allow for exact calculations because rounding errors can occur in the calculation result. The most accurate conversion of US gallons [US.liq.gal.] to cups [Imp.cup] can be achieved using the following calculation method.

  • Cups [Imp.cup] = US gallons [US.liq.gal.] * 58,674 * 1,032.256 ÷ 4,546,090

Converter

Decimal places

How it's calculated

Factor: 
≈ 13.323
US gallons = Cups ÷ 58,674 ÷ 1,032.256 * 4,546,090
Cups = US gallons * 58,674 * 1,032.256 ÷ 4,546,090

To all available units

Cups

Liquid pints

Cups

Liquid quarts

Cups

US minims

Cups

US pecks

Fluid drams

Bushels